Vehicle-spring.



R. E, WANN/1ER.I

VEHICLE SPRING. APPLICATIUN min MAR. 5, m15.

1,147,503.' Patented July 20, 1915.

a 'p merzEH-mnen gli;

Wirren eraree VEHCLE-SPRXNG.

Luttes..

novelorln of auxiliary spring lior connection between tive parts of a main vehicle spring for absorbing or preventing shocks due to rough roads, etes; the arranejeinent being such that the device is ineonspieuous, inexpensive? and easily applicable tovexisting constructions without requiring' material change thereof. These objects and other a lvantageous ends attain 'as hereinafter set forth,- refernee beinghafl to the accompa- :lying drawings, in which,

Figure l is a front elevation showing an axle in sectionA and illustrating a main vehicle spring with one forni. of my invention applied thereto; and Fig'. Q is' an elevation similar to Fig. l ilinstiating another forni ofthe invention.

ln the above drawings, lv represents a semi-elliptical leafepring'whieh at ite eenter is supported upon an axle 2 andk is held in platee by pair of spring clips 3 Whose ends pass thi "ifi i plate'fland a strap r lsarountl the axle anni 'ini e en the clips. In mlni" the main spring there is spring 6 held to a br hotly of vehicle "o e. pair et' 8.

The

lon leaves of these two Serin" ini-embers are 1, l le l 1, I

customarily eennectecl ny shaelqes extenumg between. two 'pivot bolts and respiri-- tively earried by said/ members. it ile-ing; noted that the long lealibt the spring l is: curved clown and Under the extremity ol' the long leaf of the springl.

In thatform. of my invention shown in, lig. l, provule shueltles 1l held hy. the' pli/ ot bolt 9 to the extremity ofthe long' leaf ot the spring;r member 'l so as to extend downwardly on opposite i fh nimle up of u .ries of leavesfiit cleerhsuig lengthhml rigidly connected together utV their large enils b a iair ot' .rinfr eli is'l. their srnull enils l 2. bem orflvitlefl with eves i'or the ree-entren of the .pivot bolts 10 and 12. ln this euse Speciiction of Letters Patent.

sisles 'thereof mul Connect the lower ends of'tliese two shurldes Y pplication led March 5, 1915. Serial No. f.

the .long lent' of the member 13 of this double auxiliary spring has its second extremity provided with un eve for the reception of a pivot holt lll whereby it is ronnerteil to the lower ends ot' shackles l? extending' on oppesite sides of the n'uiin spring member Litroni. which it is hung* hv a second pirot holt 1S passing through the eve ol u plete hehl in place by the clips 3. v

la that forni of in v invention shown in Fig. the auxiliary spring us hetero ronsists oi two members ixnlirutwl ut lf) uml 20 of which vone hns :n1 mul ronuerieil to the shackles l' and the other has its :uljurent enilconneeteil hy the pivot holt l() to the upper-main eprint,r ineniher as (lesrriluwl in connection with l'Fig. l. lnsi'riul oi. being' formed as in the first rase se that the number of leaves increases irem the thin rml to their point of Connection with the pivot pin "lli, us in Fig.. l, these auxiliary members ure meile to decrease in tholtne s iroiu their miilflle pointe in both (lirertions 'to their eruls and are arrangml to i'uleruin one upon the other adjacent saiil inizl'l le points. 'lfm' this purpose l provide a Suitahle form oi iuhfrum member the torn: oi: a hiugre hnvil'igg leaves intl respeetiveiy hehl te the reirA tral parte' oi.' spring; niemherf 'lll :xml .20 by clips.' and 25S whirh use 'frve to hohl together the leaves et tliese springe. und pirotally craint-ameri by e. belt 2).

ln terrier to areiil the use of bolts pussril througl the. spring,r members 19 unil f3() for the purpose el holding together their inflividuul leaves, the lutter are eurh slightly raised on one linee uml (lei'rressi'ui on the opposite 'lince preferublv at their uiitlille points or :it other peints mljurent the (flips Li um?. E25 so that the saiil leaves :1re e ertually pri if'ifiiieil troni inilepmuleill; longitluiinul-y :is we as lateral imiveiuent. f

i' leaves 532 uml tl of the hinge forming the 'luuruin member 2l :are ezufh ivruuwl with a seres or eeirrugfutioes or tinus-verse ihA pressione 21' w; their outer,suriiurrs :nul

f so slmg'erl as to lit over their. aiul it is helil in any suljustefl*position so that it eunnet more longitudinally .ol the springs by reason olE the eorrugations ZG litting the raised parte of the leaves which they adjusted at 'i By this adjustment of the fulcrum ut- :31 the resistance of the auxiliary members 19 and 2O to aload may be will, and-if desired the leaves of the auxiliary sprin members 13 and 14 may likewise be provi ed with complementary 113 sp ri ng depressions and raised portions between the two clips 15 in order to prevent theirrelaf. tive longitudinal movement.

While in the drawings I have shown the shackles 17 as connected by the bolt or pin 1S to an eye formed at one extremity of a plate 27 it is obvious that other means may be provided for connecting to or supporting said shackles 17 from `the malin' spring member 1 without departing f rom` my invention.

the thin portions of the auxiliary spring I members 13 and 11 are connected together.

-so as to transmit a load from the pivot pin 10 to the pivot pin 12, they are' similarly i connected in Fig. 12 through the mediumof the fulcru'm member 21, although in the v'flatter-case they are extended beyond their where in Fig. 1

spring members being connected `respec thin portions to provide resilient structures between said parts and the shackles" 17,

such connection is rigid or` non-resilient.

I claim l 1 The combination with two main spring members yof two auxiliary spring members each formed of a seiie's'of leaves of successively diminishing lengths rigidly connected together at one end; and means at said e'ndfor connecting said auxiliary spring members toone of the main sprmgmembers adja'cent vthe middle thereof, saidl means includingan extension from one of said auxiliary spring members; a plate mountedv on one of said main spring members; and a link pivotallyconnecting said extension'and said plate, the opposite ends of the auxiliary tively to adjacent ends of the two main spring members.

2. The combination of -two main -leaf spring lmembers having their thin ends adjacent eachother but spaced apart; a. plate mounted on one of said members adjacent its middleand having an eye; two auxiliary .leaf spring members of which one has anA extension including aneye; a shackle con-` necting saidtwo eyes; means for connecting together the thick portions of the auxiliary'.y spring members; and links connecting one of said auxiliary 'spring members with the thin end of one,of the main spring members, the second auxiliary spring member vbeing connected to the thin end of the second mam. I

spring member. A

3. The combination of two mam leaf springmembers having thin endsadjacent;

each other but spaced apart; two auxiliary:

I eaf springs each tapering. from its middlef to its ends; means for connecting two adbers' to the adjacent thin ends of the main spring members; means `for connecting to- `gether the other`-ends of .the auxiliary .wrng

members; means for. connecting said latter ends to Aone of the mamusprmg members adjacent the middle thereof; with a fulcrum member mounted ,between saidausliliarysprlng members adjacent their middle points.

4. The' combination of two main `spring members V,having thin ends adjacent each-- other but spaced apart; an auxiliary leaf spring tapering from its middle to its ends,-

having one of said. ends connected to the thin end ofone of the main spring members and its other end connected to the second main spring member'adjacenf the middle thereof; a second auxiliary spring member .having one endv connected to the thin end of the second main`spring member and its opposite end connected both to the second main spring member adjacent ,the middle thereof and'also to the' adjacent end of the -fir'st' auxiliary spring member; with a -ul, -crum member mounted between the central portions of said auxiliary spring members. 5.' The combination' of two 'auxiliary spring members each tapering. from its' middl to its ends; a fulcrum member adjust'-l ably mounted between said auxiliary sprin and engaging the middle portions thereo two main leaf spring members o f. which one has a thin end connected to the thin vend. of one-of the auxiliary spring members and jacent ends of said auxiliary spring mexn-l the other has its thin end'connected to a thin .end of the second iauxiliary spring member; andmea-ns'for connecting the other ends-ofv the -'auxiliary spring members to -each 'other and to one' ofj the 'main 4spring members adjacent the middle thereof.

In testimony whereof, I' have signed my name to this specification, in the presence of two subscribing witnesses.

n ROBERT E. HAMMER. Witnesses: l I' `WIL`L1AM E. BRADLEY,- .Win A. BARR. 

